Buildings and structures completed in 1409

island castle in Trakai, Lithuania

castle in Vilnius, Lithuania

thumb|Towngate: De Sassenpoort|200px The Sassenpoort (English: Saxon Gate) is a gatehouse in the city wall of Zwolle, the Netherlands. It was built in 1409 out of dimension stone, mostly trachyte and tuff, and restoration work was done in 1893-1898. The gatehouse is a rijksmonument and is part of the Top 100 Dutch heritage sites.